Find out what was updated!

I sow a lot of messages complaining that there is no information about update. For example last HTC update came with no info what was changed.
So I want you to check this application Hardware Tests | Windows Phone Apps+Games Store (United States) which now has ability to show you a little information about updates applied to your phone,
Here is screenshot from my HTC 8X. Look on second image . Update number 5 seems that last HTC update. First image shows what packages were updated. Unfortunately there is not way to find what all these packages exactly do, but some of them speak for themselves.